Screen.



J. V. W. REYNDERS.

SCREEN.

APPLICATION FILED SEPT. a, 1910.

1,048,882. 8 Patented De0.31,1912

. 2 SHEETS-SHEET 1.

COLUMBIA FLANOORAIII couwnsnium'orl, u.

J. V. W. REYNDERS.

SGREEN.

APPLICATION FILED SEP'1.3, 1910.

1,048,882. 8 Patented Dec. 31, 1912.

2 SHBETSSHEET 2.

COLUMBIA I'LANDGRMH co.,wAsmNOToN, D. C.

- ing my invention for handling coke.

UNITED STATES PATEN T OFFICE.

JOHN V. W. REYNDERS, 0F STEELTON, PENNSYLVANIA.

SCREEN.

To all whom it may concern:

Be it known that I, JOHN V. WV. REYN- DERS, a citizen of the United States of America, of Steelton, county of Dauphin, State of Pennsylvania, United States of America, have invented certain new and useful Improvements in Screens; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

My invention relates to mechanism for screening and handling coke and has for its object to separate the coke and breeze after leaving the coke oven or quenching car and to deposit the coke with the production of a minimum amount of breakage into railway cars or at other places asiwill be found most expedient for the particular conditions under which the coke is to be handled.

Referring to the drawings in which like parts aresimilarly designated: Figure 1 is a side elevation of the mechanism embody- Fig. 2 is a section of a modified form of screen; Fig. 3 is a longitudinal vertical section of Fig. 2 of one end of the screen. Fig. 4L is a side elevation of one of the pins for preventing the slipping of the load. Fig. 5 is a section on line 5-5 of Fig. 4.

In most cases where coke is used it is desirable to keep down the formation of breeze to as low a limit as possible and to remove the smaller sizes of breeze. In order to accomplish this separation the coke as discharged from the ovens is passed either by hand over stationary screens or screen bars to a suitable vehicle, or is first transferred to quenching cars and then allowed to pass over similar screens when transferred from the quenching car to the railroad shipping gears, coke conveyors or storage bins. In other cases there are coke conveyers that pass over stationary screens and in some cases the coke is passed from end to end through stationary revolving screens.

In all the above methods of handling coke, which represent the present practice of handling it, the cost of hand labor is extravagant, or the screening is imperfectly Specification of Lettegs Patent.

Application filed September 3, 1910.

Patented Dec. 31, 1912.

Serial No. 580,414.

done, or the coke after screening is subjected to such rough handling as to unduly increase the percentage of breeze or lines.

The total vertical movement of the successive stages of handling the coke from the coke ovens to the blast furnace should be a minimum, and the total vertical movement as well as the movement of the pieces of coke between themselves should, as far as possible, be under control, in. order that the minimum amount of movement may at all times be secured.

My invention has for its object to obviate the objections above noted, and to effect the handling of the coke with a minimum of labor and a minimum production of breeze.

In the drawings I have shown my invention when used in connection with the customary quenching cars, although it is quite practicable to use it without said cars by discharging the coke from the ovens onto a quenching plate and thence directly into the power operated screen.

The usual quenching car A is designed to run on an elevated track on a suitable trestle B. In connection with the trestle B I use a traveling bridge 0 of any well known construction, which may be adapted to run on suitable overhead tracks, such as tracks D, supported by a suitable structural iron frame F, or the traveling bridge may be of the Gantry type, and embody its own supporting legs. Mounted to run on the bridge C from end to end thereof, is a trolley F.

The bridge 0 carries an operators cage G having one or more electrical controllers H that control the motor I for operating the bridge, the motor K for traversing or operating the trolley F on the bridge, and the hoisting motor L on the trolley. From the trolley F is suspended by wire ropes or chains 2, a platform 3, designed to be raised and lowered by the hoisting motor L. At each end of the platform there are depending plates l, herein shown as substantially triangular in shape, in which is rotatably mounted a screen 5 or 5. This screen is of the barrel type with solid or imperforate circular ends 6, each of which ends is provided with trunnions 7. The interior of the screen is unobstructed by partitions, but is adjacent the discharge slot 16 free of pins, -as in Fig. 1. These pins are of hard steel, and have slots 24: therein terminating in an enlarged portion or chamber 25. Bolts 26 having T-shaped heads 27 that rest on the shoulders between 24 and 25 hold the pins in place. The lower ends of the pins are shaped to conform to the shape of the screen. These pins prevent the bodily slippingor sliding of the charge or load within the screen during its rotation. Any other suitable devices for preventing this slipping may be used.

The trunnions are mounted in the plates 4 above referred to, and one of them carries a chain wheel, a sprocket, or the equivalent 8, around which passes an endless chain 9 operated by a sprocket pinion or equivalent 10 mounted on a shaft 11 carried in suitable bearings on the platform 8. This shaft 11 carries a gear wheel 12 operated by and meshing with a pinion 13 on the rotor shaft of an electricmotor 14. The electric motor let is operated from a controller 15 also mounted on the platform 3.

The body of the screen 5 shown in Fig. 1 is of any suitable material, as perforated metal plate or the like, and does not extend around the entire periphery of the solid ends, but the edges thereof are distanced from one another to form an opening or slot 16 extending from end to end, through which slot or opening the coke is fed onto the screen and discharged therefrom. The quenching car is arranged to discharge on an inclined stationary apron 17, over which the coke slides through slot 16 into the screen 5. If the apron 17 is composed of screen plate or bars, considerable of the breeze falls through onto a stationary plate 18 below it that conducts the breeze to a suitable breeze carrier, here shown as a railway car 19, see Fig. 1, or it may be a carrier belt. As soon as the screen 5 is charged the operator in the cage G operates the controller H to move the trolley F so as to move the screen 5 free from the apron 17 and over the car 19. An operator on the platform 8 then manipulates the controller 15 so as to oscillate the screen to sift out the breeze into the car 19, after which the operator in cage Gr causes the trolley F to move over any one of a number of railway coke cars 20, and lowers the platform 3 so that the screen will enter one of said cars to about the level of its contents. The operator on the platform then causes the motor 14 to rotate the screen 5 so that its opening 16 will discharge the contents of the screen into the car. The lowering of the screen 5 into the freight or coke car prevents the coke from dropping too far and breaking up during the loading operation. It is obvious that it may sometimes be more convenient to mount all the electric controllers on one and the same platform,

providing suitable electric connections to the respective motors, whereby one operator may be able to effect the various manipulations of the apparatus for screening the coke and depositing it in the desired car.

The modified form of screen 5 shown in Figs. 2'and 3 is designed for use where the breeze is not discharged directly beneath it at the place where the coke is charged into the screen. The screen after receiving its charge of coke will then be carried by the bridge C to the place where the breeze is to be screened out. To this end substantially one-half of the side walls of the barrel screen 5 is formed of a solid or imperforate plate, and the other half of the side walls thereof of perforated plate or screen, 22. l Vhen such a barrel screen is in loading posit-ion, as shown in full lines Fig. 1, the solid portion 21 forms the bottom on which the coke is supported while the screen 5 is carried by the bridge C to the place where the breeze is to be screened. The screen 5 is then rotated to and from the position shown, in Fig. 2, to screen the coke, and finally dumped at the desired place by rotating it so that the slot or side opening 16 is at the bottom. Then a screen such as shown in Figs. 2 and 3 is used, the apron 17 onto which the quenching car discharges is com-.

posed of imperforate metal plates.

I claim 1. In a coke handling apparatus, an apron, a screen having a constantly open slot in its side, mechanism for bodily moving the screen to and from said apron, and mechanism for rotating the screen less than one rotation, whereby said slot is brought into operative relation to the apron and whereby said screen is discharged through said slot.

2. In a coke handling apparatus, an apron, a barrel screen having a constantly open slot in its side, mechanism to traverse the screen and mechanism to rotate the screen less than one rotation, whereby said slot is brought into operative relation to the apron for charging and whereby said screen is discharged.

3. In a coke handling apparatus, a power operated barrel screen having an unobstructed interior and a continuously open slot in its side extending from end to end of the screen, power means to oscillate said screen and means to traverse the screen longitudinally and transversely.

4. In an apparatus of the character described, a suspended vertically, longitudinally and transversely movable barrel screen having a receiving and discharge slot in its side continuously open, and means movable with the screen to oscillate the same.

5. In an apparatus of the character described, the combination with a suspended,

longitudinally and laterally movable platform and means to raise and lower the same,

of a barrel screen carried by the platform and having a receiving and discharge slot therein, and means on the platform to oscillate the screen.

6. In an apparatus of the character described, the combination with a suspended, longitudinally and laterally movable platform and means to raise and lower the same, of lateral hangers depending from the platform, a barrel screen journaled in the hangers, and means on the platform to oscillate the screen.

7. A barrel screen having an interior unobstructed by partitions and a slot in its side through which the material is charged and discharged, and radial pins secured to the interior of the screen, that portion of the screen adjacent the slot in the direction of discharge rotation being free from pins.

8. A screen having an imperforate portion and a perforate portion with a slot between said portions.

9. A screen havin an imperforate portion, a perforate portion with a slot between said portions, and means on the perforate portion to prevent the slipping of the load.

10. A barrel screen having an imperforate portion and a perforate portion adjacent one side the imperforate portion, the other sides of said portions being distant from one another to form a slot through which material is charged and discharged.

In testimony that I claim the foregoing as my invention, I have signed my name in presence of two subscribing witnesses.

JOHN V. W. REYNDERS.

Witnesses:

GEO. W. PARSONS, FRANK A. ROBBINS, Jr.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). C. 

